ABB introduces Infinitus DC portfolio for AI data centers

Key Takeaways

• ABB’s Infinitus portfolio delivers end‑to‑end 800 VDC power for modern AI‑driven data centers.
• DC distribution can lift overall energy efficiency by >5 %, freeing up 25 MW in a 500 MW campus – roughly the weekly electricity consumption of Washington, DC.
• By 2030 the IEA forecasts data‑center electricity use to double, and ABB predicts 25‑40 % of new capacity will adopt DC or hybrid AC/DC layouts.
• An 800 VDC system cuts conversion stages, reduces floor space, and enables ≥1 MW per rack for next‑gen AI accelerators.
• The portfolio spans five functional blocks—from medium‑voltage powertrains to solid‑state protection—making it applicable to hyperscale clouds, large‑scale manufacturing, renewables, and marine platforms.

Introduction: Why Data Centers Need a Power Paradigm Shift

The surge in artificial‑intelligence workloads is pushing rack‑level power demand from the current ~200 kW to ≥1 MW. Traditional AC distribution, with multiple transformer and rectifier stages, incurs conversion losses that become prohibitive at these densities. ABB’s Infinitus portfolio answers this challenge by offering a direct‑current (DC)‑centric architecture that can be deployed as a pure DC plant or as a hybrid overlay on existing AC infrastructure.

Market Drivers

These figures illustrate the economic and environmental incentives for operators to rethink power delivery.

The Infinitus DC Portfolio: End‑to‑End Coverage

Infinitus is not a single product but a system‑level suite that spans the entire power path—from grid connection to the compute rack. The five core blocks are:

1. Medium‑Voltage Powertrains

High‑efficiency converters move power from utility or on‑site generation (e.g., solar or gas turbines) to the data‑center substation. ABB’s solid‑state transformers (SSTs) operate at 10‑36 kV and achieve >98 % efficiency.

2. DC Sources & Power‑Quality Modules

These units perform the AC‑to‑DC conversion outside the main hall, delivering a stable 800 VDC bus. Integrated filtering keeps total harmonic distortion (THD) below 3 %, meeting IEC 61800‑9‑2 standards.

3. DC Power Distribution

Modular busbars and cable trays transport 800 VDC to each rack. Because the DC bus eliminates the need for per‑rack rectifiers, floor‑space consumption drops by 15‑20 %.

4. DC Power Protection

ABB’s solid‑state circuit breakers (rated up to 10 kA) and static medium‑voltage UPS units provide instantaneous fault isolation, protecting AI servers and personnel without the arc‑flash hazards of high‑voltage AC.

5. DC‑Native Rack Interfaces

Custom inlet modules accept the 800 VDC bus and feed power directly to AI accelerators, reducing the internal conversion chain to a single high‑efficiency DC‑DC regulator (typical efficiency >96 %).

Benefits Over Conventional AC Architecture

The efficiency uplift translates into 25 MW of usable IT power for a 500 MW campus, which ABB values at >$300 million in additional annual revenue.

Broader Applicability

While the primary focus is AI‑heavy hyperscale clouds, the Infinitus suite is engineered for any high‑density, energy‑intensive setting:

• Large‑scale manufacturing – powering robotics and additive‑manufacturing cells.
• Renewable‑energy farms – DC collection from PV arrays or offshore wind converters.
• Marine and offshore platforms – compact, low‑maintenance DC distribution in confined spaces.

ABB collaborates with leading chipmakers (e.g., NVIDIA, AMD), hyperscale operators, and standards bodies to ensure the portfolio aligns with emerging PCI‑e‑4/5 and CXL power specifications.

Bottom Line

ABB’s Infinitus portfolio delivers a future‑proof, high‑efficiency DC power ecosystem that directly addresses the exploding power density of AI workloads. By cutting conversion stages, improving overall efficiency by more than five percent, and freeing up valuable floor space, the solution can generate hundreds of megawatts of additional compute capacity—and billions of dollars in revenue—by 2030. For data‑center operators seeking to stay competitive in the AI era, adopting an 800 VDC architecture is no longer a niche experiment but a strategic imperative.